Britain's royals celebrate Christmas

Royals arrive for Christmas Day service

Queen Elizabeth II, right, and Kate, Duchess of Cambridge, arrive at the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Queen Elizabeth II and Kate

Queen Elizabeth II, second right, embraces Kate, Duchess of Cambridge, as they arrive at the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince William and Kate

Prince William, Duke of Cambridge, and Kate, Duchess of Cambridge arrive for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince William and Kate

Prince William, Duke of Cambridge, and Kate, Duchess of Cambridge arrive with other members of Britain's royal family for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Kate, Duchess of Cambridge

Kate, Duchess of Cambridge, arrives for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince William and Kate

Prince William, Duke of Cambridge, and Kate, Duchess of Cambridge arrive for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince Harry

Britain's Prince Harry arrives to attend a Christmas Day Service with other members of the royal family at St. Mary Magdalene Church on the grounds of Sandringham Estate, Queen Elizabeth II's royal estate in Norfolk, England, on Dec. 25, 2013.

Credit: AP Photo/Lefteris Pitarakis

Princess Beatrice and Princess Eugenie

Princess Beatrice and Princess Eugenie arrive for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince Edward and family

Sophie, Countess of Wessex, Lady Louise Windsor and Prince Edward, Earl of Wessex, arrive at the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince Phillip and Prince Andrew

Prince Phillip, Duke of Edinburgh, and Prince Andrew, Duke of York, arrive for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince William and Kate

Prince William, Duke of Cambridge, left, and Kate, Duchess of Cambridge, arrive for the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince William and Kate

Britain's Prince William, left, accompanied by his wife Kate, Duchess of Cambridge, arrive to attend a Christmas Day service at St. Mary Magdalene Church on the grounds of Sandringham Estate, Queen Elizabeth II's royal estate in Norfolk, England, on Dec. 25, 2013.

Credit: AP Photo/Lefteris Pitarakis

Queen Elizabeth II

Queen Elizabeth II leaves the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Prince Harry and Prince William

Prince William, Duke of Cambridge, right, and Prince Harry leave the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Royals attend Christmas Day service

Zara and Mike Tindall, with other members of Britain's royal family, leave the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Autumn & Peter Phillips, Mike Tindall

Autumn Phillips, Peter Phillips and Mike Tindall leave the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Queen Elizabeth II

Queen Elizabeth II leaves the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Camilla, Duchess of Cornwall

Camilla, Duchess of Cornwall leaves the Christmas Day service at Sandringham on Dec. 25, 2013, in King's Lynn, England.

Credit: Chris Jackson/Getty Images

Queen Elizabeth II

Britain's Queen Elizabeth II waits to receive flowers from children after she and other members of the royal family attended a Christmas Day service at St. Mary Magdalene Church on the grounds of Sandringham Estate, the queen's royal estate in Norfolk, England, on Dec. 25, 2013.

Credit: AP Photo/Lefteris Pitarakis

Kate, Duchess of Cambridge

Kate, Duchess of Cambridge, talks to people after she and other members of the royal family attended a Christmas Day service at St. Mary Magdalene Church on the grounds of Sandringham Estate, Queen Elizabeth II's royal estate in Norfolk, England, on Dec. 25, 2013.

Credit: AP Photo/Lefteris Pitarakis

Queen Elizabeth II and Kate

Britain's Queen Elizabeth II receives flowers from children as the Duchess of Cambridge, top, looks on after members of the royal family attended a Christmas Day service at St. Mary Magdalene Church on the grounds of Sandringham Estate, the queen's royal estate in Norfolk, England, on Dec. 25, 2013.

Credit: AP Photo/Lefteris Pitarakis

Kate, Duchess of Cambridge

Kate, Duchess of Cambridge, talks to children after she and other members of the royal family attended a Christmas Day service at St. Mary Magdalene Church on the grounds of Sandringham Estate, Queen Elizabeth II's royal estate in Norfolk, England, on Dec. 25, 2013.